// Jubatus: Online machine learning framework for distributed environment
// Copyright (C) 2012 Preferred Infrastructure and Nippon Telegraph and Telephone Corporation.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

#pragma once

#include <string>
#include "../common/type.hpp"

namespace jubatus {
namespace fv_converter {

struct datum;

void revert_feature(const sfv_t& fv,
                    datum& data);

bool revert_num_value(const std::pair<std::string, float>& feature,
                      std::pair<std::string, float>& num_value);

bool revert_string_value(const std::pair<std::string, float>& feature,
                         std::pair<std::string, std::string>& string_value);

}
}
